Zimmer Biomet iASSIST Knee Manual page 30

iASSIST 2-Pod Version Surgical Technique
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Proximal Tibial Cut Validation
11. A drop rod can optionally be used to check
the varus/valgus orientation of the cut before
performing the resection. Insert the paddle
section of the alignment arch in the tibial cut
guide. Make sure that the arm of the alignment
arch is aligned with the A/P plane of the tibia.
Then, slide a drop rod in the body of the alignment
arch.
Note: The alignment rod with coupler (provided
by Zimmer) can be used to verify the cut.
Note: The Natural-Knee II Axial Alignment Rod
(provided by Zimmer) can be used to verify the
cut.
12. Resect the proximal tibia.
Warning: The tibial cut guide is compatible with
saw blades of 1.27 mm (0.05 inch) thickness.
Figure 3.10
Proximal Tibial Cut – Validation
1. Remove the cut guide pod attached to the front
receptacle of the tibial adjustment mechanism and
clip it to the validation tool.
2. Position the flat surface of the validation tool on
the proximal tibial cut.
3. Secure the validation tool on the proximal tibial
cut using the captive spikes. Additionally two 3.5
X 38 mm hex head screws can be used for more
stability.
Warning: Care must be taken when impacting
the spikes of the validation tool to avoid
potential interference between the spikes
and the screws used to secure the tibial
adjustment mechanism and the tibial cut
guide. If interference is felt, the validation tool
should be shifted 10 mm mediolaterally.